how'd you think romney will handle this? are you comfortable with him having a kill list? >> i have no idea what you're talking about. >> obama has a secret kill list. >> i will be happy to answer any serious questions. >> the existence of the u.s. kill list has been publicly known for nearly two years and was the subject of a 6000-word exposÉ in the new york times earlier this year. at the same event, former white house press secretary and current obama campaign adviser robert gibbs was asked about the was killing of awlaki, the teenage son of anwar al- awlaki's. in response, gibbs blamed the elder awlaki for his son's assassination by u.s. drone. >> do you think the california son iski's 16-year-old justifiable? what i'm not going to get into his son. i know anwar awlaki renounced his citizenship. >> his son was still an american citizen. >> he did great harm to this country. he was a regional al qaeda commander hoping to inflict harm and destruction on people that share his religion and others in this country. >> that is an american citizen being targeted without charg